Smoking pipe



Dec. 19, 1950 M. PLEsH 2,534,476

SMOKING PIPE Filed May 25, 1945 @Kim Patented Dec. 19, 1950 UNITED STATES ?ATENT OFFICE r SMOKING PIPE Marion Plesh, Represa, Calif.

Application May 25, 1945, Serial No. 595,668

2 Claims. (Cl. ISL-222) This invention relates to a new. and useful improvement in smoking pipes and the like, the principal object being to provide a smoking pipe or a cigarette holder wherein means is provided for cooling the smoke before reaching the smokers mouth.

Another important object of the invention is to provide a smoking pipe wherein a hollow walled bowl is provided for conducting off heat radiating from the smoking chamber, to the end that the outside of the bowl will not be hot in the hands of the smoker.

Still another important object of the invention is to provide a smoking pipe which takes care of cooling the bowl, cooling the smoke for its passage through the stem of the pipe and before it reaches the mouth oi the smoker, together with provision for removal of excess nicotineladen moisture, wherein the various parts that go to obtain these different results are separate and separable as regards to structure, to the end that these parts can be taken apart whenever desired for the purposes of repairs or replacement and also for the thorough cleaning thereof.

Other objects and advantages to be attained will hereinafter more fully appear in the following description.

In the illustrative but non-limiting exempliiication of the invention,

Figure l of the drawings is a vertical longitudinal sectional view 'through a pipe structure;

Figure 2 is a top plan view of the base stem and bitl or mouth piece assembly detached from the pipe bowl, the base stem being in longitudinal section at a 90 angle from that of Figure i and the nipple extension or the bit or mouth piece being in fragmentary longitudinal section;

Figure 3 is a vertical transverse section taken on the line 33 of Figure 1;

Figure 4 is a fragmentary view partly in top plan and partly in horizontal section taken on the line 4-4 of Figure 1.

VReferring now to the drawings in detail and wherein like numerals designate like parts, it can be seen that the numeral 5 denotes, generally, a bowl, the numeral 9 a base stem to which the bowl is detachably secured, and the numeral 1 a bit or mouth piece fitted detachably to the base stem. The base stern 6 is internally screw threaded along its upper portion from its bowl end to its opposite end for receiving the correspondingly externally screw threaded, elongated nipple extension 8 of said bit or mouth piece 1,

Cil

the lower portion of the stem being smooth bored, as clearly shown in Figures 1 and 3. Y

The bit or mouth piece 1 is providedvwith an axial smoke bore or duct 9 extending longitudinally from its outer end and terminating a short distance within the nipple extension 8, as at IG (see Figures 1 and 2).

The externally screw threaded circumferential portion of the nipple extension 8 is provided with a plurality or" longitudinal smoke duct grooves communicating transversely at their opposite ends so as to constitute a reversible continuous passageway extending substantially from end to end of said nipple extension. That is to say, the ends of the grooves terminate near the opposite ends of the nipple extension 8 and they are alternately connected in staggered relationship so that the smoke drawn from the bowl 5 travels for a considerable length, reversely, back and fourth from substantially end to end of the nipple extension 8 and within the internally screw threaded bore of the base stem 6.

One of the aforesaid longitudinal, partially circumferential smoke duct grooves II starts at or about the place, designated at I2 (see Figure 2) and terminates adjacent the base of the nipple extension 8, as at I3, whence it is turned at substanlially a right angle, as at I4, and joins communicably with a second longitudinal groove I5 located at the side oi the nipple extension at substantially an angle of ninety degrees from the groove II. This groove I5 extends to the vicinity of the bowl end of the nipple extension 8, Where it is cross-connected by a semi-annular transverse short groove I6 to the end of a third longitudinal groove I1 along the side of the nipple extension 8 diametrically opposite the groove I5. The opposite end of the groove I 1 terminates communicably with the end I0 of the smoke duct 9 through a short angular cross passage I8.

It is here noted, that the smoke from the bowl 5 enters the end portion I2 of the rst longitudinal smoke duct groove II and then passes forwardly through said groove II, thencelacross the arcuate connecting passage i4 into the second longitudinal groove I5, through which latter groove the smoke continues its travel rearwardly through said groove I5 to the rear-positioned arcuate cross passage I6 to and through the third longitudinal smoke duct groove I1, whence the smoke passes through the cross passage I8 and into and out through the axial smoke duct 9 in the bit or mouth piece 1.

The nipple extension 8 is cut away and flattened on its under side, as at I9, from a point adjacent the base of said extension where it joins the bit or mouth piece I to the free end of the nipple (see Figure l). This cutting away and mutilation of the nipple extension 8 on the under side thereof produces with smooth bored lower portion of the stem 6 an elongated space 2l which space 2I is connected at its forward end communicably with the smoke duct groove I'I, as at I8', adjacent where said groove Il communicates with the smoke duct 9 in the bit or mouth piece 'I through the cross passage I8. Hence, all excess, nicotine-impregnated, moisture coming from the bowl 5 through the smoke duct groove Il is condensed in the space 2I and is thus trapped and prevented from passing with the desired smoke into the mouth of the smoker.

In order to appreciably increase the capacity of the trap afforded by the said space 2l, the cutaway bottom face I9 of the nipple extension 8 is grooved longitudinally, as at 22, medially, parallel with and contiguously below its axis, this groove 22 extending to the rear end of the nipple and being, itself, open-ended. By this provision, not only is the capacity of the nicotine-laden moisture trap 2I greatly increased in capacity and without interfering with the aforesaid provision and arrangement of smoke duct grooves and cross-connections in the nipple extension, but the parts are readily cleaned in their assembled relation as will presently more fully appear. Then, too, the bit or mouth piece l, with its nipple extension 8 intact therewith, is readily unscrewed and detached from the pipe stem base proper and replaced at will.

At the rear or bowl end of the base stem 6 is an endwise bore which is screw threaded internally to receive a screw plug 23 having a periph- `erally knurled cap or collar portion 24 which is tightened against the adjacent end of the base stem 6 when the plug is inserted to close the end of the bore in the base stem. Preferably, there is a clearance space 25 provided between the inner end of the plug 23 and the adjacent end of the nipple extension 8. This is primarily intended to prevent contact between the parts 8 and 23 so .as not to interfere with the tightening of the bit or mouth piece 'i against the adjacent opposite end portion of the base stem 5.

The bowl 5 is constructed of an outer wall 25 having a bottom 2l formed with air openings 2S therein. The bottom has a central threaded opening therethrough for receiving tightly therein a correspondingly threaded reduced end por- .tion of an axially apertured nipple 29 depending from the bottom of an inner bowl 3G. As shown more clearly in Figure 4, the apertures 28 in the bottom of the outer bowl portion are arranged annularly in the bottom 21 adjacent said outer Wall Z. The outer bowl member having the outer wall 26 has a leert-formed boss 3I on the bottom 21 thereof for receiving slidably `the tongue-and-groove side portions of the base stem end portion so as to hold the bowl 25 in place on the stem 6, the nipple 29 has a protruding .reduced lowei1 end portion which nts snugly in a corresponding registering hole provided thereunder in the adjacent top portion of the base stem 6. Thus, the bowl assembly 5 is readily removable oi the rear end of and replaceable on the base Stem B and the bowl assembly, itself, as readily assembled and disassembled, at will. It is also noted that the hole in the base stem 5 that receives the lower end of the nipple 7.3 is communicable directly with the end portion VI2 .i of the base stem 35'.

4 of the first duct groove I I in the assembled nipple extension 8.

The upper portion of the inner bowl 3|] has an outwardly projected, circumferential, annular shoulder 32 on its top portion, with an annular top flange 33 of said circumferential shoulder 32 overlapping the upper edge of the outer wall 26 of the outer bowl. The circumferential shoulder 32 has openings 3Q therein and this shoulder serves to space the inner bowl 30 from the outer wall 26, thus leaving a circulatory air passage 35 between the outer wall 26 and the inner bowl 30. Obviously, as heat radiates from the inner bowl 30 while the pipe is being smoked, air begins to rise in the space 35, with outside air entering the openings 28 and expelling the heated air in the space 35 between the inner bowl 3i) and the outer wall 26 through the upper openings 34, thus conducting away the heat which is radiated by the inner bowl 36.

In placing the bowl assembly 5 on the base stem 3 for use, the inner bowl 30 is rst unscrewed from the outer bowl 2e and removed therefrom. Then the outer bowl 25 is slid with its kerf-formed bottom boss 3| onto the groove portion of the base stem E, with the center hole in the bottom of the outer bowl in register with the screw threaded top hole in the adjacent end portion of the base stem, after which the inner bowl Se is screwed into place with its projected central nipple member 29 inserted in said top hole of the base stem S. By the same token and reversal of operation, the parts are disassembled with equal ease and facility.

W hen the pipe is being smoked, smoke is drawn downwardly through the nipple 29 from the bowl 3G and into the first longitudinal channel II and continues along the passages described above.

Removal of the plug 23 permits cleaning of the trap chamber 2l, and, in fact, the entire base stem and bit or mouth piece assembly. The removability of the bowl assembly 5 also facilitates cleaning and repairing of the entire pipe structure. The plug 23 will prevent loss of the Y bowl olf the rear end of the base stem in the event of a fracture or failure of the nipple 29.

A modification of the invention is shown in Figure 5 wherein the reference character 36 denotes an internally screw 'threaded hollow base stem of a cigarette holder, the same having a cigarette-receiving socket 3l at one end. At the inner end of the socket 3l is a venturi throat opening 38 communicating with a flared space 3S at the adjacent end of the screw threaded bore ln this modification there is a bit or mouth piece E similar, in general, to the bit or mouthpiece 'i of the hereinbefore described pipe construction, except that there is no trap for nicotine-laden moisture. That is to say, the mouthpiece proper El has an externally screw threaded nipple extension lli provided with smoke duct grooves I5 and il in an arrangement substantially like that of the grooves I5 and I'i' of the above-described structure. Said nipple extension i is also provided with partially circumferential smoke duct grooves I i extending longitudinally therethrough from the end thereof and terminating at a point adjacent its opposite end. The grooves II', I5 and i7 are crossconnected, as at i3', Irl' and I5', substantially in the same manner so as to afford a longitudinal back and forth travel of the smoke. The nipple extension 4l is readily screwed into the bore of the base stem 36 in assembling the parts, and

it is as readily removed, at will, for the cleaning and repair of the parts.

While the foregoing specification sets forth the invention in specific terms, the recited structure is merely illustrative of a practical exemplication of the invention, and it is to be understood that numerous changes in the shape, size of the parts and also as to the material used, may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed.

Having described the invention, what is claimed as new is:

1. As a new article of manufacture, a smoking pipe including a hollow base stem having one end provided with a mouthpiece and a bowl detachably secured to the other end thereof, said base stem being provided with a longitudinally extending bore, there being opposed grooves extending from the other end of said base stem, tongue means carried by said bowl and slidably 'supported within said opposed grooves for assembling said bowl on said base stem, connecting means dependingly supported by said bowl and connected to said base stem for positioning said bowl with respect to said base stem, said connecting means having one end in communication with said bowl and having the other end in communication with said bore, and closure means positioned adjacent to said other end of said base stem and threadably secured to said bore for closing the latter and to prevent said bowl from being inadvertently slid off the end of said base stem.

2. As a new article of manufacture, a smoking pipe including a hollow base stem having one end provided with a mouthpiece and a bowl detachably secured to the other end thereof, said base stem being provided with a longitudinally extending interiorly threaded bore, there being opposed grooves extending inwardly from the other end of said base stem, tongue means carried by said bowl and slidably supported within said opposed grooves for assembling said bowl on said base stem, a screw threaded nipple member having one end connected to said bowl member and having the other end extending through and embracingly supported within said base stem for positioning said bowl with respect to said base stem, said nipple member having one end in communication with said bowl and having the other end in communication with said bore, and closure means positioned adjacent to said other end of said base stem and threadably secured to said bore for closing the latter and to prevent said bowl from being inadvertently slid olf the end of said base stem.

- MARION PLESH.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 562,593 Elam June 23, 1896 610,757 Johnson Sept. 13, 1898 858,737 Marshall July 2, 1907 2,176,315 Schwinn Oct. 17, 1939 2,200,237 Kersten May 7, 1940 2,204,282 Pedery June 11, 1940 2,269,541 MacDonald Jan. 13, 1942 

